*{
    margin: 0;
    padding: 0;
    list-style: none;
}
body{
    background-color: #000;
}
.slider{
    height: 180px;
    position: relative;
}
.slider div#bd{
    height: 180px;
    position: relative;
    overflow: hidden;
}
.slider div#bd ul li{
    height: 180px;
    overflow: hidden;
}
.slider div#bd ul li img{
    width: 100%;
    height: 180px;
    display: block;
}
.slider div#hd{
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
}
.slider div#hd ul{
    width: 90px;
    margin: auto;
}
.slider div#hd ul li{
    display: block;
    float: left;
    width: 30px;
    height: 25px;
    line-height: 25px;
    background-color: #000;
    color: #fff;
    text-align: center;
    opacity: 0.3;
}
.slider div#hd ul li:hover{
    opacity: 0.7;
}
.slider div#hd ul li.on{
    opacity: 0.8;
}
